Which of the following statements are TRUE? (Check all that apply) An associative array is an unordered collection of data elements indexed by keys, for example supported in Java by map-related libraries A union is a type of a record in which the same address is used for every union field resulting in union variables storing different type values at different times during the program execution A tuple is a data type that is similar to a record, except that the elements are not named, for example in Python they are immutable and used to allow functions to return multiple values A record is an aggregate of data elements, called fields, that must be of the same type and are typically accessed using a dot notation rather than an index
Which of the following statements are TRUE? (Check all that apply) An associative array is an unordered collection of data elements indexed by keys, for example supported in Java by map-related libraries A union is a type of a record in which the same address is used for every union field resulting in union variables storing different type values at different times during the program execution A tuple is a data type that is similar to a record, except that the elements are not named, for example in Python they are immutable and used to allow functions to return multiple values A record is an aggregate of data elements, called fields, that must be of the same type and are typically accessed using a dot notation rather than an index
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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